Ham Home-cum-Hamgreen Woods is a 23.2-hectare (57-acre) biological Site of Special Scientific Interest in Kingswood near Grendon Underwood in Buckinghamshire.

[1][2] The site is woodland on clay, and although most of it has been coppiced at different times, it has a varied structure, and rich variety of flora and invertebrates.

The main tree is oak, with an understorey which includes wych elm, crab apple and guelder rose.

Flowers include primroses and bluebells, and in wetter areas there are ragged robin and marsh bedstraw.

The woods have the largest British breeding colony of the nationally rare black hairstreak butterfly.